Siemens CRM-4 Controllable Relay Module
The Siemens CRM-4 is an addressable controllable relay module that provides a supervised relay output point on a Siemens analog addressable fire alarm loop. The fire alarm panel commands the CRM-4 relay on or off, enabling precise control of external systems and equipment in response to alarm, supervisory, or trouble conditions.
Typical applications for the CRM-4 include HVAC air handler shutdown, magnetic door holder release, elevator recall, fan control, and other ancillary building system control functions required by fire alarm system design. Because the CRM-4 is fully addressable, each relay module appears as a distinct output point in the panel's programming, allowing targeted, zone-specific control.
The CRM-4 provides a supervised relay contact and is compatible with Siemens MXL, FireFinder XLS, and Sinteso fire alarm control panels. Part number 500-890xxx. Life Safety Consultants stocks Siemens control modules and supports complete Siemens addressable fire alarm system configurations.
- Supervised relay output on addressable loop
- Panel-commanded on/off relay control
- HVAC shutdown, door release, ancillary control
- Compatible with MXL, FireFinder XLS, Sinteso
- Part #: 500-890xxx
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1 lbs |
|---|---|
| Dimensions | 4.3 × 4.5 × 6.5 in |
| Part Type | Controllable, Smoke Detector |
| Manufacturers | Siemens |
| Compatible Panels | MXL, FireFinder XLS, Sinteso |
| Compatible Bases | Standard Siemens module base |
| Cross Reference | 500-890xxx |
| Output | Supervised relay, Control: Panel-commanded addressable, Applications: HVAC, door release, ancillary, Part #: 500-890xxx |







